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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package schema
import (
format "github.com/apache/arrow-go/v18/parquet/internal/gen-go/parquet"
)
// ConvertedType corresponds to the ConvertedType in the parquet.Thrift,
// with added values of None and NA for handling when these values are not
// set in the metadata
type ConvertedType format.ConvertedType
var (
// ConvertedTypes is a struct containing the constants for the types
// to make it easy to reference them while making it clear what they are
ConvertedTypes = struct {
None ConvertedType
UTF8 ConvertedType
Map ConvertedType
MapKeyValue ConvertedType
List ConvertedType
Enum ConvertedType
Decimal ConvertedType
Date ConvertedType
TimeMillis ConvertedType
TimeMicros ConvertedType
TimestampMillis ConvertedType
TimestampMicros ConvertedType
Uint8 ConvertedType
Uint16 ConvertedType
Uint32 ConvertedType
Uint64 ConvertedType
Int8 ConvertedType
Int16 ConvertedType
Int32 ConvertedType
Int64 ConvertedType
JSON ConvertedType
BSON ConvertedType
Interval ConvertedType
NA ConvertedType
}{
None: -1, // thrift enum starts at 0, so we know this will not be used
UTF8: ConvertedType(format.ConvertedType_UTF8),
Map: ConvertedType(format.ConvertedType_MAP),
MapKeyValue: ConvertedType(format.ConvertedType_MAP_KEY_VALUE),
List: ConvertedType(format.ConvertedType_LIST),
Enum: ConvertedType(format.ConvertedType_ENUM),
Decimal: ConvertedType(format.ConvertedType_DECIMAL),
Date: ConvertedType(format.ConvertedType_DATE),
TimeMillis: ConvertedType(format.ConvertedType_TIME_MILLIS),
TimeMicros: ConvertedType(format.ConvertedType_TIME_MICROS),
TimestampMillis: ConvertedType(format.ConvertedType_TIMESTAMP_MILLIS),
TimestampMicros: ConvertedType(format.ConvertedType_TIMESTAMP_MICROS),
Uint8: ConvertedType(format.ConvertedType_UINT_8),
Uint16: ConvertedType(format.ConvertedType_UINT_16),
Uint32: ConvertedType(format.ConvertedType_UINT_32),
Uint64: ConvertedType(format.ConvertedType_UINT_64),
Int8: ConvertedType(format.ConvertedType_INT_8),
Int16: ConvertedType(format.ConvertedType_INT_16),
Int32: ConvertedType(format.ConvertedType_INT_32),
Int64: ConvertedType(format.ConvertedType_INT_64),
JSON: ConvertedType(format.ConvertedType_JSON),
BSON: ConvertedType(format.ConvertedType_BSON),
Interval: ConvertedType(format.ConvertedType_INTERVAL),
NA: 24, // should always be the last values after Interval
}
)
func (p ConvertedType) String() string {
switch p {
case ConvertedTypes.None:
return "NONE"
case ConvertedTypes.NA:
return "UNKNOWN"
default:
return format.ConvertedType(p).String()
}
}
// ToLogicalType returns the correct LogicalType for the given ConvertedType, using the decimal
// metadata provided to define the precision/scale if necessary
func (p ConvertedType) ToLogicalType(convertedDecimal DecimalMetadata) LogicalType {
switch p {
case ConvertedTypes.UTF8:
return StringLogicalType{}
case ConvertedTypes.Map, ConvertedTypes.MapKeyValue:
return MapLogicalType{}
case ConvertedTypes.List:
return ListLogicalType{}
case ConvertedTypes.Enum:
return EnumLogicalType{}
case ConvertedTypes.Decimal:
return NewDecimalLogicalType(convertedDecimal.Precision, convertedDecimal.Scale)
case ConvertedTypes.Date:
return DateLogicalType{}
case ConvertedTypes.TimeMillis:
return NewTimeLogicalType(true /* adjustedToUTC */, TimeUnitMillis)
case ConvertedTypes.TimeMicros:
return NewTimeLogicalType(true /* adjustedToUTC */, TimeUnitMicros)
case ConvertedTypes.TimestampMillis:
return NewTimestampLogicalTypeWithOpts(WithTSIsAdjustedToUTC(), WithTSTimeUnitType(TimeUnitMillis), WithTSFromConverted())
case ConvertedTypes.TimestampMicros:
return NewTimestampLogicalTypeWithOpts(WithTSIsAdjustedToUTC(), WithTSTimeUnitType(TimeUnitMicros), WithTSFromConverted())
case ConvertedTypes.Interval:
return IntervalLogicalType{}
case ConvertedTypes.Int8:
return NewIntLogicalType(8 /* bitWidth */, true /* signed */)
case ConvertedTypes.Int16:
return NewIntLogicalType(16 /* bitWidth */, true /* signed */)
case ConvertedTypes.Int32:
return NewIntLogicalType(32 /* bitWidth */, true /* signed */)
case ConvertedTypes.Int64:
return NewIntLogicalType(64 /* bitWidth */, true /* signed */)
case ConvertedTypes.Uint8:
return NewIntLogicalType(8 /* bitWidth */, false /* signed */)
case ConvertedTypes.Uint16:
return NewIntLogicalType(16 /* bitWidth */, false /* signed */)
case ConvertedTypes.Uint32:
return NewIntLogicalType(32 /* bitWidth */, false /* signed */)
case ConvertedTypes.Uint64:
return NewIntLogicalType(64 /* bitWidth */, false /* signed */)
case ConvertedTypes.JSON:
return JSONLogicalType{}
case ConvertedTypes.BSON:
return BSONLogicalType{}
case ConvertedTypes.None:
return NoLogicalType{}
case ConvertedTypes.NA:
fallthrough
default:
return UnknownLogicalType{}
}
}
// GetSortOrder defaults to the sort order based on the physical type if convert
// is ConvertedTypes.None, otherwise determines the sort order by the converted type.
func GetSortOrder(convert ConvertedType, primitive format.Type) SortOrder {
if convert == ConvertedTypes.None {
return DefaultSortOrder(primitive)
}
switch convert {
case ConvertedTypes.Int8,
ConvertedTypes.Int16,
ConvertedTypes.Int32,
ConvertedTypes.Int64,
ConvertedTypes.Date,
ConvertedTypes.TimeMicros,
ConvertedTypes.TimeMillis,
ConvertedTypes.TimestampMicros,
ConvertedTypes.TimestampMillis,
ConvertedTypes.Decimal:
return SortSIGNED
case ConvertedTypes.Uint8,
ConvertedTypes.Uint16,
ConvertedTypes.Uint32,
ConvertedTypes.Uint64,
ConvertedTypes.Enum,
ConvertedTypes.UTF8,
ConvertedTypes.BSON,
ConvertedTypes.JSON:
return SortUNSIGNED
case ConvertedTypes.List,
ConvertedTypes.Map,
ConvertedTypes.MapKeyValue,
ConvertedTypes.Interval,
ConvertedTypes.None,
ConvertedTypes.NA:
return SortUNKNOWN
default:
return SortUNKNOWN
}
}
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